CN104158242A - Track traffic braking energy storage and utilization device - Google Patents
Track traffic braking energy storage and utilization device Download PDFInfo
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- CN104158242A CN104158242A CN201410378206.8A CN201410378206A CN104158242A CN 104158242 A CN104158242 A CN 104158242A CN 201410378206 A CN201410378206 A CN 201410378206A CN 104158242 A CN104158242 A CN 104158242A
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Abstract
The invention belongs to the technical field of track traffic regenerated energy storage and utilization and relates to a novel track traffic braking energy storage and utilization device. The device comprises a hardware composition system and a control system, wherein various functional modules in the hardware composition system are in electrical information combination and communication; the control system adopts a distributed control manner; each control unit is combined with collected data and signals to independently control the functional modules; when a vehicle brakes, a multi-phase stagger chopping module absorbs the regenerated electric energy, and charges an ultra-capacitor module and a storage battery module; when the vehicle is accelerated in starting and travels with inertia, the electric energy of the ultra-capacitor module charges the storage battery module through the multi-phase stagger chopping module, and an inversion module can convert direct current in the storage battery module into alternate current and outputs the alternate current to a high-speed charger, so that the high-speed charger quickly charges an electric vehicle. According to the invention, the overall structure is simple, the assembly principle is reliable, the energy storing efficiency is high, the energy utilization is wide, the energy saving effect is obvious, and the application environment is friendly.
Description
Technical field:
The invention belongs to the storage of track traffic regenerated energy and utilize technical field, the track traffic braking energy that relates to a kind of novel braking energy storage and electric automobile high-speed charging device, particularly a kind of energy-saving and emission-reduction and renewable energy resources comprehensive utilization stores use device.
Background technology:
At present, in field of track traffic, vehicle generally adopts regeneration electric braking, varied to the processing mode of regenerating braking energy both at home and abroad; Domesticly mainly take resistance power consumption and mix inversion (power consumption of inversion feedback+resistance) form as main, wherein mainly to take stand interior 400V power utilization network and rectifier transformer secondary side be feedback node in inversion feedback, and pure inverter mode is because of above-mentioned node power capacity problem, also there is not at home engineering antecedent; In the world, there is in recent years the energy storage pattern of various regenerated energies, as German flywheel energy storage and super capacitor energy-storage; As Japanese super capacitor energy-storage and lithium ion battery energy storage; The super capacitor energy-storage of Korea S etc.Certainly, the pure inversion Feedback Technology of these countries is also quite ripe, has many successful cases, and various energy storage modes have the pluses and minuses of oneself and realize difficulty, await continuing to improve.No matter make a general survey of present situation, be inversion feedback mode or energy storage mode, and the flow direction of regenerated energy is all confined to the urban transportation inside, to other field, do not expand.
Rapid charge station (charging pile) is the novel supply project occurring along with the universal of the consciousness of people's energy-conserving and environment-protective and electric automobile in recent years, have many demonstration pilot projects at home and abroad, but because of course continuation mileage and the charging interval problem of storage battery also completely not universal, the capacity of EV car battery, course continuation mileage, useful life and charging interval etc. directly affect the spreading speed of electric automobile, and then affect the universal scope at rapid charge station; For high speed charger, main task is as far as possible fast to charge in batteries in the situation that not affecting battery life, the high speed charger of the developed countries such as America and Europe and Japan can make storage battery reach fully charged state in 15～30 minutes, What is more, can in 5～8 minutes, reach 50%～80% capacity charged state, though do not affect useful life, but the life-span impact of storage battery is had much, need to investigate and real example.So, on prior art basis, seek design a kind of new regenerating braking energy storage mechanism and application mode are provided, rail vehicle regenerative electric energy has society and economic worth to the system and device of electric vehicle rapid charging very much.
Summary of the invention:
The object of the invention is to overcome existing rail vehicle regenerative electric energy storage and utilize the single shortcoming of scope, seek to design a kind of novel system device that stores and effectively utilize track traffic braking energy that absorbs, this device stores the regenerating braking energy of rail traffic vehicles by special-purpose accumulator, to being located at high speed charger near the electric vehicle rapid charging station of rail vehicle supply station, power, and in 15～20 minutes, complete the quick charge to electric automobile by high speed charger; The energy flow of this device is inner to not being confined to rail vehicle electric power system, but flows to EV electric automobile by rail vehicle; By the function served as bridge of this device, not only extended the application approach of green energy resource, also for the distributed management of green energy resource from now on provides new approaches; This device adopts high speed charger charging, not only saves time, and saves civil power power consumption; The regenerated energy producing during by rail traffic vehicles electric braking is turned waste into wealth, and by rapid charge, expands the universal scope of electric automobile, and then realizes the effect of energy-saving and emission-reduction, environmental protection; Accumulator and high speed charger are the core components of whole device, accumulator is installed in rail vehicle supply station, its major function is that the regenerating braking energy producing in track train brake process is absorbed and stored, near the position of traffic convenience train power supply station or train bus stop is built at rapid charge station, to facilitate travelling and berthing of charging electric vehicle front and back; The core technology of this device is characterised in that: the one, and make the braking energy of rail vehicle promote the use of electric automobile; The 2nd, adopt super capacitor and storage battery to store regenerating braking energy blended absorbent; The 3rd, adopt the frequency conversion high speed battery charger that broadens.
In order to realize foregoing invention object, the agent structure that the hardware of the system and device the present invention relates to forms system comprises pre-charge module, the first heterogeneous staggered copped wave module, absorption resistance module in parallel, super-capacitor module, the second heterogeneous staggered copped wave module, battery module, inversion module, duplicate supply modular converter, rapid charge station and high speed charger, and each module is communicated with rapid charge station and the combination of rapid charge Measurement And Control of The Jet Flotation Column the system of subject device forming as shown in Figure 1, the control system of native system device is divided into host computer comprehensive monitoring system, regenerated energy absorbs control system, battery management control system and charging station management system, and control system absorbs control system and electric substation automation system electricity information communication by regenerated energy, host computer comprehensive monitoring system and display system electricity information communication, each system electricity information communication forms track traffic braking energy and stores and use device, energy storage adopts the composite construction of super capacitor and lithium battery energy storage battery, super-capacitor module and battery module are combined into accumulator, during car brakeing, accumulator charges to super-capacitor module and battery module by the first heterogeneous staggered copped wave module and the second heterogeneous staggered copped wave module simultaneously, the first heterogeneous staggered copped wave module absorbs total regenerative braking electric energy, the second heterogeneous staggered copped wave module absorbs the regenerative electric energy that belongs to battery module, remainder electric energy automatic storage is in super-capacitor module, the absorption of the second heterogeneous staggered copped wave module is expanded the function of super capacitor storage volume, by heterogeneous staggered copped wave, super-capacitor module and battery module are charged, when reducing inductance value, can obtain good dynamic response and ripple coefficient again, the absorption that is conducive to regenerating braking energy is controlled, in the Acceleration of starting of vehicle and slowing time section, the current potential energy of super-capacitor module continues by the second heterogeneous staggered copped wave module, battery module to be charged, the energy storage space of the super-capacitor module of soaring, for the storage of next periodic regeneration braking energy is prepared, and further increase the accumulate energy of battery module, improve the power supply capacity of battery module to high speed charger, high speed charger carries out rapid charge to electric automobile, and high speed charger is provided with the intelligent control function of rapid charge, and by Frequency-variable Modulation and pulse-width modulation, the pulsating current of output variable frequency, variable impulse width, charges to Vehicular accumulator cell, Frequency-variable Modulation is in conjunction with the different state-of-charges of storage battery, and different charge-discharge velocities is provided, and under different state-of-charges, the charge bonded speed of storage battery is different, pulse-width modulation is in conjunction with different SOC (the discharging and recharging the degree of depth) states of storage battery, the different power that discharges and recharges is provided, under different SOC states, the electric charge of storage battery receives ability different, control system show that according to the relevant parameter of the terminal voltage of storage battery, dynamically internal resistance, charging and discharging currents, internal temperature and state-of-charge current the best discharges and recharges frequency and pulsewidth, guarantees safety and the useful life of battery module when guaranteeing the charge rate of Vehicular accumulator cell, high speed charger is provided with the communication interface with vehicle mounted battery management system, for the collection of desired signal, refers to the schematic block diagram of high speed charger structural principle shown in accompanying drawing 3.
In the hardware composition system the present invention relates to, the function of pre-charge module is to carry out precharge to the every mutually preposition filter capacitor in the first heterogeneous staggered copped wave module, and the size of preliminary filling electric current is determined by the charging resistor size of rectification unit output; The major function of the first heterogeneous staggered copped wave module is absorption and regeneration electric energy, by DC bus-bar voltage, absorbing set point and Absorption Current maximum set value carries out determining voltage and determines current double-ring PID controlling, Voltage loop outside, electric current loop is interior, adopt multiphase interleaving circuit, flat ripple inductance value and the volume of every phase are little, and the ripple coefficient of output total current is little; Absorption resistance module in parallel is to approach fully charged state when super-capacitor module and battery module, but survive again and while not finishing, carry out the energy consumption absorption of dump energy, when the Capacity design of super-capacitor module and battery module is reasonable, the input probability of absorption resistance module in parallel is very little, and another effect of absorption resistance module in parallel is the Releasing loop that super capacitor module and battery module provide electric energy while safeguarding; The function of super-capacitor module is to store powerful regenerated energy, because the power density of super-capacitor module is large, when the first heterogeneous staggered copped wave module work, most of energy storage is in super-capacitor module, and super-capacitor module has all presses, crosses the defencive function of gentle overvoltage to super capacitor monomer; The function of the second heterogeneous staggered copped wave module is to carry out quick charge to battery module, adopt current impulse variable frequency control mode, along with the increase of the battery charging and discharging degree of depth (soc), the pulsewidth of electric current positive pulse, intermittent pulse, negative pulse can reduce, and frequency can strengthen; In battery module, be provided with battery management system, repid discharge module, battery status monitoring and protection module are contained in inside, battery management system in the second heterogeneous staggered copped wave module and battery module keeps real-time communication, guarantees safety and the quick charge of battery module; The function of battery module is the regenerated energy that storage super-capacitor module absorbs, after regeneration ending, the first heterogeneous staggered copped wave module quits work, the second heterogeneous staggered copped wave module works on, until the energy of storing in super-capacitor module is all transferred in battery module, so that super-capacitor module can absorb energy again while braking in next cycle, the capacity of battery module is 5～10 times of super capacitor capacity; Inversion module is that the direct current in battery module is converted to and is applicable to the alternating current that high speed charger is used, inversion module becomes small-power inversion unit module in conjunction with the scale design at rapid charge station, 1～2 high speed charger of each small-power inversion unit block configuration; Duplicate supply modular converter is that the output of inverter module and civil power input are switched, when the load at rapid charge station the electric power supply of ambassador's battery module be switched to civil power input when not enough, under normal circumstances civil power input probability seldom, scheme in support only; In rapid charge station, be provided with many high speed chargers, form the quick charge platform of electric automobile, scale is determined according to the universal situation of local rail vehicle supply station distribution situation and electric motor car, for improving utilization rate of electrical, the uptake of regenerative electric energy and the charge volume of electric automobile need to reach balance, with battery module, do not overcharge and only put and be as the criterion; High speed charger carries out quick charge to EV electric automobile, battery management system in conjunction with electric automobile, in 15～30 minutes, electric motor car is carried out to full charging, high speed charger is the core of whole system, the amount of capacity that can quick charge be directly connected to battery module, the capacity of the faster battery module of charging is less, and vice versa.
The control system the present invention relates to adopts collecting and distributing control mode, each control unit module has independently controls function, and the unified host computer comprehensive monitoring system that is controlled by, divides and autonomy, comprehensive coordination, the inefficacy of each control unit module or exit can not make whole control system paralysis; Regenerated energy absorbs control system in conjunction with data acquisition signal own and automation of transformation substations signal, realizes the absorption of regenerated energy and controls, and comprises precharge control, copped wave control and super capacitor control function; Battery management control system is in conjunction with the Management System Data of data acquisition signal own and battery module, realization is controlled the fast charging and discharging of storage battery, comprises heterogeneous copped wave charging control, battery management and protection, inversion module control and duplicate supply conversion and control; Charging station management system is the monitor supervision platform at rapid charge station, realizes the monitoring of each high speed charger and management; Host computer comprehensive monitoring system coordinated management regenerated energy absorbs control system, battery management control system and three subsystems of charging station management system, each subsystem is upward-compatible in host computer comprehensive monitoring system, separate again a plurality of functional modules downwards, regenerated energy absorbs the downward extraction of signal collection of control system, precharge control and copped wave control module.
The high speed charger the present invention relates to is by alternating current-direct current power conversion module, DC/DC power conversion module, rectification filtering module and discharge and recharge control module electric connection and combine, and alternating current-direct current power conversion module is converted to the direct current for DC/DC power conversion module input AC electricity; The signal that DC/DC power conversion module provides according to the microprocessor unit arranging in system and device converts out and discharges and recharges the required direct current energy of control module, supplies to discharge and recharge control module to Vehicular accumulator cell quick charge after rectifying and wave-filtering; The microprocessor unit arranging in system and device by with the communication of EV car battery management system, detect the information of terminal voltage, dynamically internal resistance, state-of-charge, SOC and the temperature of vehicle-mounted battery module, and show that in conjunction with data own the best of every kind of Vehicular accumulator cell module fills curve soon, according to the real-time status information of filling soon curve and storage battery, constantly adjust and discharge and recharge charging current pulse, the intermittent pulse of control module output, width and the frequency of discharge pulse, make to hold on-vehicle battery module and complete in the best condition quick charge; The charge-discharge characteristic of every kind of Vehicular accumulator cell is not identical, in control system, be provided with memory function, to dissimilar Vehicular accumulator cell pointed discharge and recharge countermeasure, the effect of repairing while realizing this reparation, discharging when charging during this charging, this electric discharge, does not affect useful life of storage battery when making Vehicular accumulator cell constantly keep optimum state.
Compared with prior art, its overall structure is simple in the present invention, and building block principle is reliable, and energy storage efficiency is high, and energy utilization is extensive, and energy-saving effect is obvious, and applied environment is friendly.
Accompanying drawing explanation:
Fig. 1 is that agent structure hardware of the present invention forms circuit system catenation principle schematic diagram.
Fig. 2 is control system structural principle schematic block diagram of the present invention.
Fig. 3 is high speed charger structural principle schematic block diagram of the present invention.
Embodiment:
Below by embodiment, also further illustrate by reference to the accompanying drawings.
The agent structure that the hardware of the system and device that the present embodiment relates to forms system comprises the heterogeneous staggered copped wave module 2 of pre-charge module 1, first, absorption resistance module 3 in parallel, the heterogeneous staggered copped wave module 5 of super-capacitor module 4, second, battery module 6, inversion module 7, duplicate supply modular converter 8, rapid charge station 9 and high speed charger 10, and each module is communicated with the system of subject device forming as shown in Figure 1 with rapid charge station 9 and the electric information combination of high speed charger 10, the control system of native system device is divided into host computer comprehensive monitoring system 15, regenerated energy absorbs control system 12, battery management control system 13 and charging station management system 14, and control system absorbs control system 12 and the electric information communication of electric substation automation system 11 by regenerated energy, host computer comprehensive monitoring system 15 and the electric information communication of display system 16, each system electricity information communication forms the system and device that track traffic braking energy reclaims storage and electric motor car utilization, energy storage adopts the composite construction of super capacitor and lithium battery energy storage battery, super-capacitor module 4 and battery module 6 are combined into accumulator, during car brakeing, accumulator charges to super-capacitor module 4 and battery module 6 by the first heterogeneous staggered copped wave module 2 and the second heterogeneous staggered copped wave module 5 simultaneously, the first heterogeneous staggered copped wave module 2 absorbs total regenerative braking electric energy, the second heterogeneous staggered copped wave module 5 absorbs the regenerative electric energy that belongs to battery module 6, remainder electric energy automatic storage is in super-capacitor module 4, the absorption of the second heterogeneous staggered copped wave module 5 is expanded the function of super capacitor storage volume, by heterogeneous staggered copped wave, to super-capacitor module 4 and battery module 6 chargings, when reducing inductance value, can obtain good dynamic response and ripple coefficient again, the absorption that is conducive to regenerating braking energy is controlled, in the Acceleration of starting of vehicle and slowing time section, the current potential energy of super-capacitor module 4 continues to charge by 5 pairs of battery modules 6 of the second heterogeneous staggered copped wave module, the energy storage space of the super-capacitor module of soaring 4, for the storage of next periodic regeneration braking energy is prepared, and further increase the accumulate energy of battery module 6, improve the power supply capacity of 6 pairs of high speed chargers 10 of battery module, high speed charger 10 carries out rapid charge to electric automobile, and high speed charger 10 is provided with the intelligent control function of rapid charge, and by Frequency-variable Modulation and pulse-width modulation, the pulsating current of output variable frequency, variable impulse width, charges to Vehicular accumulator cell, Frequency-variable Modulation is in conjunction with the different state-of-charges of storage battery, and different charge-discharge velocities is provided, and under different state-of-charges, the charge bonded speed of storage battery is different, pulse-width modulation is in conjunction with different SOC (the discharging and recharging the degree of depth) states of storage battery, the different power that discharges and recharges is provided, under different SOC states, the electric charge of storage battery receives ability different, control system show that according to the relevant parameter of the terminal voltage of storage battery, dynamically internal resistance, charging and discharging currents, internal temperature and state-of-charge current the best discharges and recharges frequency and pulsewidth, guarantees safety and the useful life of battery module when guaranteeing the charge rate of Vehicular accumulator cell, high speed charger 10 is provided with the communication interface with vehicle mounted battery management system, for the collection of desired signal, refers to the schematic block diagram of high speed charger structural principle shown in accompanying drawing 3.
In the hardware composition system that the present embodiment relates to, the function of pre-charge module 1 is to carry out precharge to the every mutually preposition filter capacitor in the first heterogeneous staggered copped wave module 2, and the size of preliminary filling electric current is determined by the charging resistor size of rectification unit output; The major function of the first heterogeneous staggered copped wave module 2 is absorption and regeneration electric energy, by DC bus-bar voltage, absorbing set point and Absorption Current maximum set value carries out determining voltage and determines current double-ring PID controlling, Voltage loop outside, electric current loop is interior, adopt multiphase interleaving circuit, flat ripple inductance value and the volume of every phase are little, and the ripple coefficient of output total current is little; Absorption resistance module 3 in parallel is to approach fully charged state when super-capacitor module 4 and battery module 6, but survive again and while not finishing, carry out the energy consumption absorption of dump energy, when the Capacity design of super-capacitor module 4 and battery module 6 is reasonable, the input probability of absorption resistance module 3 in parallel is very little, and another effect of absorption resistance module 3 in parallel is the Releasing loop that super capacitor module 4 and battery module 6 provide electric energy while safeguarding; The function of super-capacitor module 4 is to store powerful regenerated energy, because the power density of super-capacitor module 4 is large, when the first heterogeneous staggered copped wave module 2 work, most of energy storage is in super-capacitor module 4, and super-capacitor module 4 has all presses, crosses the defencive function of gentle overvoltage to super capacitor monomer; The function of the second heterogeneous staggered copped wave module 5 is to carry out quick charge to battery module 6, adopt current impulse variable frequency control mode, along with the increase of the battery charging and discharging degree of depth (soc), the pulsewidth of electric current positive pulse, intermittent pulse, negative pulse can reduce, and frequency can strengthen; In battery module 6, be provided with battery management system, repid discharge module, battery status monitoring and protection module are contained in inside, the second heterogeneous staggered copped wave module 5 keeps real-time communication with the battery management system in battery module 6, guarantees safety and the quick charge of battery module 6; The function of battery module 6 is regenerated energies that storage super-capacitor module absorbs, after regeneration ending, the first heterogeneous staggered copped wave module 2 quits work, the second heterogeneous staggered copped wave module 5 works on, until the energy of storage is all transferred in battery module 6 in super-capacitor module 4, so that super-capacitor module 4 can absorb energy again while braking in next cycle, the capacity of battery module 6 is 5～10 times of super capacitor capacity; Inversion module 7 is that the direct current in battery module 6 is converted to and is applicable to the alternating current that high speed charger 10 is used, inversion module 7 becomes small-power inversion unit module in conjunction with the scale design at rapid charge station 9,1～2 high speed charger of each small-power inversion unit block configuration; Duplicate supply modular converter 8 is that the output of inverter module 7 and civil power input are switched, when the load at rapid charge station 9 the electric power supply of ambassador's battery module 6 be switched to civil power input when not enough, under normal circumstances civil power input probability seldom, scheme in support only; In rapid charge station 9, be provided with many high speed chargers 10, form the quick charge platform of electric automobile, scale is determined according to the universal situation of local rail vehicle supply station distribution situation and electric motor car, for improving utilization rate of electrical, the uptake of regenerative electric energy and the charge volume of electric automobile need to reach balance, with battery module 6, do not overcharge and only put and be as the criterion; High speed charger 10 carries out quick charge to EV electric automobile, battery management system in conjunction with electric automobile, in 15～30 minutes, electric motor car is carried out to full charging, high speed charger is the core of whole system, the amount of capacity that can quick charge be directly connected to battery module 6, the capacity of faster battery module 6 of charging is less, and vice versa.
The control system that the present embodiment relates to adopts collecting and distributing control mode, each control unit module has independently controls function, and the unified host computer comprehensive monitoring system that is controlled by, divides and autonomy, comprehensive coordination, the inefficacy of each control unit module or exit can not make whole control system paralysis; Regenerated energy absorbs control system in conjunction with data acquisition signal own and automation of transformation substations signal, realizes the absorption control system 12 of regenerated energy, comprises precharge control, copped wave control and super capacitor control function; Battery management control system 13 is in conjunction with the Management System Data of data acquisition signal own and battery module 6, realization is controlled the fast charging and discharging of storage battery, comprises heterogeneous copped wave charging control, battery management and protection, inversion module control and duplicate supply conversion and control; Charging station management system 14 is the monitor supervision platform at rapid charge station 9, realizes the monitoring of each high speed charger 10 and management; Host computer comprehensive monitoring system 15 coordinated management regenerated energies absorb control system 12, battery management control system 13 and 14 3 subsystems of charging station management system, each subsystem is upward-compatible in host computer comprehensive monitoring system 15, separate again a plurality of functional modules downwards, regenerated energy absorbs the downward extraction of signal collection of control system 12, precharge control and copped wave control module.
The high speed charger 10 that the present embodiment relates to is by alternating current-direct current power conversion module 17, DC/DC power conversion module 18, rectification filtering module 19 and discharge and recharge control module 20 electric connections and combine, and alternating current-direct current power conversion module 17 is converted to the direct current for DC/DC power conversion module 18 input AC electricity; The signal that DC/DC power conversion module 18 provides according to the microprocessor unit arranging in system converts out and discharges and recharges the required direct current energy of control module 20, supplies to discharge and recharge control module 20 to Vehicular accumulator cell quick charge after rectifying and wave-filtering; The microprocessor unit arranging in system and device by with the communication of EV car battery management system, detect the information of terminal voltage, dynamically internal resistance, state-of-charge, SOC and the temperature of vehicle-mounted battery module, and show that in conjunction with data own the best of every kind of Vehicular accumulator cell module fills curve soon, according to the real-time status information of filling soon curve and storage battery, constantly adjust and discharge and recharge charging current pulse, the intermittent pulse of control module output, width and the frequency of discharge pulse, make to hold on-vehicle battery module and complete in the best condition quick charge; The charge-discharge characteristic of every kind of Vehicular accumulator cell is not identical, in control system, be provided with memory function, to dissimilar Vehicular accumulator cell pointed discharge and recharge countermeasure, the effect of repairing while realizing this reparation, discharging when charging during this charging, this electric discharge, does not affect useful life of storage battery when making Vehicular accumulator cell constantly keep optimum state.
Embodiment:
The transforming plant DC bus of the present embodiment is connected with the major loop of this device with high-speed circuit breaker QF by isolating switch QS, by DPT1 voltage sensor senses transforming plant DC busbar voltage, as transforming plant DC busbar voltage (1500V system 1000～1800V in allowed band, 750V system 500～900V) time, every phase Support Capacitor C11 by from pre-charge module 1 to the first heterogeneous staggered copped wave module 2, C12, C13, charge, the contactor KM1 of closed this device when Support Capacitor voltage and transforming plant DC busbar voltage differ 50V left and right, and exit pre-charge module 1, now this device has entered and has treated running status, when there being car brakeing to make busbar voltage be increased to the first heterogeneous staggered copped wave module 2 and the second heterogeneous staggered copped wave module 5 work when above of the absorption set point (1680V) of this device, absorb the regenerative electric energy of vehicle, every phase Absorption Current maximum 600A of the first heterogeneous staggered copped wave module 2, every phase ripple coefficient 60%, when employing three is staggered, obtain 20% ripple coefficient, the Absorption Current of the second heterogeneous staggered copped wave module 5 arranges in conjunction with the charging current characteristic of battery module 6, and the present embodiment is set to 200A, when super-capacitor module 4 reaches fully charged state, but substation bus bar voltage is also when absorbing set point, and absorption resistance module 3 in parallel drops into, the change in voltage scope 600～1200V of super-capacitor module 4, capacity 24F, by the connection in series-parallel of super capacitor module, formed, the 600V rated of battery module 6, the reserve of electricity of battery module 6 is designed to 10 times of super-capacitor module 4 reserve of electricitys, stores the electric energy of 7.5 super-capacitor module 4 when battery module 6 does not outwards discharge, after regeneration ending, super-capacitor module 4 continues to charge to battery module 6 by the second heterogeneous staggered copped wave module 5, until the voltage of super-capacitor module 4 drops to 600V, the work of so far regenerated energy absorption control system 12, battery management control system 13 completes, the action of residue charging station management system 14, the action of charging station management system 14 is to EV electric motor car, to carry out quick charge by high speed charger 10, energy source is the regenerative electric energy that battery module 6 stores, the inversion that is completed regenerative electric energy by inversion module 7 is exported, the just scheme use in support in the present embodiment of the civil power incision function of duplicate supply modular converter 8, as long as the capacity of battery module 6 and the charging capacity of high speed charger 10, in conjunction with perfection, just can not cut civil power.
Claims (4)
1. a track traffic braking energy stores use device, the agent structure that it is characterized in that the hardware composition system of system and device comprises pre-charge module, the first heterogeneous staggered copped wave module, absorption resistance module in parallel, super-capacitor module, the second heterogeneous staggered copped wave module, battery module, inversion module, duplicate supply modular converter, rapid charge station and high speed charger, and each module is communicated with and forms system of subject device with rapid charge station and the combination of rapid charge Measurement And Control of The Jet Flotation Column, the control system of native system device is divided into host computer comprehensive monitoring system, regenerated energy absorbs control system, battery management control system and charging station management system, and control system absorbs control system and electric substation automation system electricity information communication by regenerated energy, host computer comprehensive monitoring system and display system electricity information communication, each system electricity information communication forms track traffic braking energy and stores and use device, energy storage adopts the composite construction of super capacitor and lithium battery energy storage battery, super-capacitor module and battery module are combined into accumulator, during car brakeing, accumulator charges to super-capacitor module and battery module by the first heterogeneous staggered copped wave module and the second heterogeneous staggered copped wave module simultaneously, the first heterogeneous staggered copped wave module absorbs total regenerative braking electric energy, the second heterogeneous staggered copped wave module absorbs the regenerative electric energy that belongs to battery module, remainder electric energy automatic storage is in super-capacitor module, the absorption of the second heterogeneous staggered copped wave module is expanded the function of super capacitor storage volume, by heterogeneous staggered copped wave, super-capacitor module and battery module are charged, when reducing inductance value, can obtain good dynamic response and ripple coefficient again, the absorption that is conducive to regenerating braking energy is controlled, in the Acceleration of starting of vehicle and slowing time section, the current potential energy of super-capacitor module continues by the second heterogeneous staggered copped wave module, battery module to be charged, the energy storage space of the super-capacitor module of soaring, for the storage of next periodic regeneration braking energy is prepared, and further increase the accumulate energy of battery module, improve the power supply capacity of battery module to high speed charger, high speed charger carries out rapid charge to electric automobile, and high speed charger is provided with the intelligent control function of rapid charge, and by Frequency-variable Modulation and pulse-width modulation, the pulsating current of output variable frequency, variable impulse width, charges to Vehicular accumulator cell, Frequency-variable Modulation is in conjunction with the different state-of-charges of storage battery, and different charge-discharge velocities is provided, and under different state-of-charges, the charge bonded speed of storage battery is different, pulse-width modulation is to discharge and recharge degree of depth state in conjunction with storage battery difference, the different power that discharges and recharges is provided, difference discharges and recharges the electric charge of storage battery under degree of depth state and receives ability different, control system show that according to the relevant parameter of the terminal voltage of storage battery, dynamically internal resistance, charging and discharging currents, internal temperature and state-of-charge current the best discharges and recharges frequency and pulsewidth, guarantees safety and the useful life of battery module when guaranteeing the charge rate of Vehicular accumulator cell, high speed charger is provided with the communication interface with vehicle mounted battery management system, for the collection of desired signal.
2. track traffic braking energy according to claim 1 stores use device, the function that it is characterized in that pre-charge module in hardware composition system is to carry out precharge to the every mutually preposition filter capacitor in the first heterogeneous staggered copped wave module, and the size of preliminary filling electric current is determined by the charging resistor size of rectification unit output; The function of the first heterogeneous staggered copped wave module is absorption and regeneration electric energy, by DC bus-bar voltage, absorbing set point and Absorption Current maximum set value carries out determining voltage and determines current double-ring PID controlling, Voltage loop outside, electric current loop is interior, adopt multiphase interleaving circuit, flat ripple inductance value and the volume of every phase are little, and the ripple coefficient of output total current is little; Absorption resistance module in parallel is to approach fully charged state when super-capacitor module and battery module, but survive again and while not finishing, carry out the energy consumption absorption of dump energy, when the Capacity design of super-capacitor module and battery module is reasonable, the input probability of absorption resistance module in parallel is very little, and another effect of absorption resistance module in parallel is the Releasing loop that super capacitor module and battery module provide electric energy while safeguarding; The function of super-capacitor module is to store powerful regenerated energy, because the power density of super-capacitor module is large, when the first heterogeneous staggered copped wave module work, most of energy storage is in super-capacitor module, and super-capacitor module has all presses, crosses the defencive function of gentle overvoltage to super capacitor monomer; The function of the second heterogeneous staggered copped wave module is to carry out quick charge to battery module, adopts current impulse variable frequency control mode, and along with the increase of the battery charging and discharging degree of depth, the pulsewidth of electric current positive pulse, intermittent pulse, negative pulse can reduce, and frequency can strengthen; In battery module, be provided with battery management system, repid discharge module, battery status monitoring and protection module are contained in inside, battery management system in the second heterogeneous staggered copped wave module and battery module keeps real-time communication, guarantees safety and the quick charge of battery module; The function of battery module is the regenerated energy that storage super-capacitor module absorbs, after regeneration ending, the first heterogeneous staggered copped wave module quits work, the second heterogeneous staggered copped wave module works on, until the energy of storing in super-capacitor module is all transferred in battery module, so that super-capacitor module can absorb energy again while braking in next cycle, the capacity of battery module is 5～10 times of super capacitor capacity; Inversion module is that the direct current in battery module is converted to and is applicable to the alternating current that high speed charger is used, inversion module becomes small-power inversion unit module in conjunction with the scale design at rapid charge station, 1～2 high speed charger of each small-power inversion unit block configuration; Duplicate supply modular converter is that the output of inverter module and civil power input are switched, when the load at rapid charge station the electric power supply of ambassador's battery module be switched to civil power input when not enough, under normal circumstances civil power input probability seldom, scheme in support only; In rapid charge station, be provided with many and get the high speed charger of structure, form the quick charge platform of electric automobile, scale is determined according to the universal situation of local rail vehicle supply station distribution situation and electric motor car, for improving utilization rate of electrical, the uptake of regenerative electric energy and the charge volume of electric automobile need to reach balance, with battery module, do not overcharge and only put and be as the criterion; High speed charger carries out quick charge to EV electric automobile, battery management system in conjunction with electric automobile, in 15～30 minutes, electric motor car is carried out to full charging, high speed charger is the core of whole system, the amount of capacity that can quick charge be directly connected to battery module, the capacity of the faster battery module of charging is less, and vice versa.
3. track traffic braking energy according to claim 1 stores use device, it is characterized in that control system adopts collecting and distributing control mode, each control unit module has independently controls function, the unified host computer comprehensive monitoring system that is controlled by, divide and autonomy, comprehensive coordination, the inefficacy of each control unit module or exit can not make whole control system paralysis; Regenerated energy absorbs control system in conjunction with data acquisition signal own and automation of transformation substations signal, realizes the absorption of regenerated energy and controls, and comprises precharge control, copped wave control and super capacitor control function; Battery management control system is in conjunction with the Management System Data of data acquisition signal own and battery module, realization is controlled the fast charging and discharging of storage battery, comprises heterogeneous copped wave charging control, battery management and protection, inversion module control and duplicate supply conversion and control; Charging station management system is the monitor supervision platform at rapid charge station, realizes the monitoring of each high speed charger and management; Host computer comprehensive monitoring system coordinated management regenerated energy absorbs control system, battery management control system and three subsystems of charging station management system, each subsystem is upward-compatible in host computer comprehensive monitoring system, separate again a plurality of functional modules downwards, regenerated energy absorbs the downward extraction of signal collection of control system, precharge control and copped wave control module.
4. track traffic braking energy according to claim 1 stores use device, it is characterized in that high speed charger by alternating current-direct current power conversion module, DC/DC power conversion module, rectification filtering module and discharge and recharge control module electric connection constituting, alternating current-direct current power conversion module is converted to the direct current for DC/DC power conversion module input AC electricity; The signal that DC/DC power conversion module provides according to the microprocessor unit arranging in system and device converts out and discharges and recharges the required direct current energy of control module, supplies to discharge and recharge control module to Vehicular accumulator cell quick charge after rectifying and wave-filtering; The microprocessor unit arranging in system and device by with the communication of EV car battery management system, detect the information of terminal voltage, dynamically internal resistance, state-of-charge, SOC and the temperature of vehicle-mounted battery module, and show that in conjunction with data own the best of every kind of Vehicular accumulator cell module fills curve soon, according to the real-time status information of filling soon curve and storage battery, constantly adjust and discharge and recharge charging current pulse, the intermittent pulse of control module output, width and the frequency of discharge pulse, make to hold on-vehicle battery module and complete in the best condition quick charge; The charge-discharge characteristic of every kind of Vehicular accumulator cell is not identical, in control system, be provided with memory function, to dissimilar Vehicular accumulator cell pointed discharge and recharge countermeasure, the effect of repairing while realizing this reparation, discharging when charging during this charging, this electric discharge, does not affect useful life of storage battery when making Vehicular accumulator cell constantly keep optimum state.
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